Eleazar was a biblical priest and the second High Priest of Israel, succeeding his father, Aaron. As the nephew of Moses, he played several significant roles during the Exodus, including managing sacred items such as the anointing oil, incense, and the grain offering. Following the deaths of his older brothers, he and his brother Ithamar assumed responsibility for the sanctuary. He held the high priesthood for more than two decades, overseeing various rituals and assisting in the distribution of land.